CN116265699A - Device and method for pumping and fishing pump type electric submersible plunger pump snubbing operation - Google Patents
Device and method for pumping and fishing pump type electric submersible plunger pump snubbing operation Download PDFInfo
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- CN116265699A CN116265699A CN202111555564.8A CN202111555564A CN116265699A CN 116265699 A CN116265699 A CN 116265699A CN 202111555564 A CN202111555564 A CN 202111555564A CN 116265699 A CN116265699 A CN 116265699A
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- baffle ring
- packing device
- type electric
- upper joint
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000005086 pumping Methods 0.000 title description 5
- 238000012856 packing Methods 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005406 washing Methods 0.000 abstract description 29
- 230000008569 process Effects 0.000 abstract description 19
- 239000007788 liquid Substances 0.000 abstract description 12
- 239000012530 fluid Substances 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 6
- 239000012188 paraffin wax Substances 0.000 description 6
- 238000007689 inspection Methods 0.000 description 5
- 239000003129 oil well Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
- E21B33/1275—Packers; Plugs with inflatable sleeve inflated by down-hole pumping means operated by a down-hole drive
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/128—Adaptation of pump systems with down-hole electric drives
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a well killing-free operation device and method of a casting-in and fishing-out pump type electric submersible plunger pump, wherein the device comprises an oil pipe, a motor and an underground packing device, the motor is arranged in the oil pipe, and the underground packing device is connected with the bottom end of the oil pipe; when the motor presses the underground packing device, the underground packing device expands outwards. By adopting the motor rotor to drive the underground packing device downwards, the annular space of the sleeve is packed, and hot washing liquid does not enter the stratum in the process of hot washing wax removal, so that the hot washing efficiency is improved; in the pump operation process is examined to the fixed string, seal and separate the oil reservoir, isolated stratum pressure, directly carry out the pump operation of lifting under the formation safety condition, not only reduced the pollution of kill fluid to the stratum, still improved operating efficiency greatly.
Description
Technical Field
The invention belongs to the technical field of oilfield artificial lifting, and particularly relates to a device and a method for pumping-in and pumping-out type electric submersible plunger pump snubbing operation.
Background
In recent years, in the petroleum exploitation industry, an electric submersible plunger pump is used as a power device of a petroleum exploitation system in an oilfield field to be applied to a certain scale. The electric submersible plunger pump mainly comprises two systems, namely a submersible linear motor system and an oil pump system. The submersible linear motor system directly converts electric energy into reciprocating linear motion, and the oil pump system lifts bottom hole liquid to a wellhead.
Compared with the pumping unit as a power device, the electric submersible plunger pump has the following advantages: (1) obvious energy-saving effect; (2) The sucker rod is not existed, so that the problem of eccentric wear of the pipe and the rod is avoided, and the sucker rod is more suitable for directional wells and horizontal wells; and (3) intelligent control can be realized. The parameters can be adjusted by using buttons in the ground control cabinet, and the parameter adjustment is simple and convenient; if the remote monitoring system is matched, the functions of remote monitoring and operation can be realized; (4) meets the requirement of environmental protection. The electric submersible plunger pump has no packing sealing problem in the beam type sucker rod pump lifting process, so that the problem of oil leakage at packing is solved.
With the continuous optimization of the process, the casting-in-fishing pump type electric submersible plunger pump solves the problems that an oil pipe, a linear motor and a cable are required to be lifted when the conventional electric submersible plunger pump is used for pump detection operation, the operation cost is high, the cable is easy to damage, and the pump detection operation is carried out without a pipe column. However, in the application process of the prior art, the problem that the operation efficiency is affected because well killing operation is required in the pump detection operation process by the fixed pipe column still exists.
Disclosure of Invention
The invention aims at solving the problems that the pump-throwing type electric submersible plunger pump does not kill the well and the method thereof can effectively solve the problems that the pump-throwing operation is needed and the operation efficiency is affected in the pump detection operation process of a fixed pipe string. In order to achieve the above purpose, the following technical scheme is adopted:
the well killing-free operation device of the casting-fishing pump type electric submersible plunger pump comprises an oil pipe, a motor and an underground sealing device, wherein the motor is arranged in the oil pipe, and the underground sealing device is connected with the bottom end of the oil pipe; when the motor presses the underground packing device, the underground packing device expands outwards.
Preferably, the underground packing device comprises an upper joint, a baffle ring and a packer rubber cylinder, wherein one end of the upper joint is connected with the bottom end of the oil pipe, one side of the baffle ring is arranged inside the upper joint, the other side of the baffle ring is arranged outside the upper joint, the baffle ring is in sliding connection with the upper joint, the packer rubber cylinder is fixedly sleeved outside the upper joint, and the packer rubber cylinder is tightly arranged with the baffle ring.
Preferably, the upper joint is provided with a sliding hole, and the baffle ring is arranged on the upper joint in a penetrating way through the sliding hole.
Preferably, the baffle ring comprises an upper baffle ring arranged outside the upper joint and an inner baffle ring arranged inside the upper joint, and the upper baffle ring is fixedly connected with the inner baffle ring.
Preferably, a sealing ring is arranged between the inner baffle ring and the upper joint.
Preferably, the upper baffle ring and the inner baffle ring are connected by pins or bolts.
Preferably, the underground packing device comprises a lower joint, the other end of the upper joint is fixedly connected with the lower joint, and the packer rubber is positioned between the baffle ring and the lower joint.
Preferably, the motor is a linear motor, the working stroke of a linear motor rotor is 1.23-1.3m, and the overstroke length is 0.07m.
A method for running a pump-type electric submersible plunger pump without well killing, which adopts the device as set forth in any one of claims 1-8, comprising:
the motor rotor of the motor downwards extrudes the underground packing device, and the underground packing device expands outwards to seal the annular space between the oil pipe and the sleeve, so that the operation is started;
and after the operation is finished, controlling the motor rotor to ascend, and realizing deblocking by the underground packing device.
Preferably, the motor rotor downwards extrudes an inner baffle ring of the underground packing device, the inner baffle ring drives the upper baffle ring to downwards extrude a packer rubber cylinder, the packer rubber cylinder is expanded, and an annular space between the oil pipe and the sleeve is sealed.
The invention has the following beneficial effects: according to the well killing operation device of the throwing and fishing pump type electric submersible plunger pump, the linear motor rotor is adopted to drive the underground packing device downwards, the annular space of the casing is packed, hot washing liquid does not enter the stratum in the process of hot washing and paraffin removal, and the hot washing efficiency is improved; in the pump operation process is examined to the fixed string, seal and separate the oil reservoir, isolated stratum pressure, directly carry out the pump operation of lifting under the formation safety condition, not only reduced the pollution of kill fluid to the stratum, still improved operating efficiency greatly. The well-killing-free operation method of the casting-fishing pump type electric submersible plunger pump adopts the underground packing device to operate, is simple to operate, and effectively solves the problems that well-killing operation is needed and the operation efficiency is affected in the process of pump detection operation without a pipe string, and the problem that oil pipes are easy to wax, hot washing liquid easily enters a stratum in the process of hot washing and paraffin removal, so that the hot washing efficiency is low.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic view of the downhole packer device of the invention;
FIG. 2 shows a schematic diagram of a well killing operation device of a casting and fishing pump type electric submersible plunger pump;
in the figure, 1, a transformer; 2. an intelligent control cabinet; 3. a power cable; 4. a wellhead; 5. a sleeve; 6. an oil pipe; 7. a fishing head of a throwing and fishing pump; 8. pump cylinder sealing device of the oil-well pump; 9. an oil pump; 10. the plunger disconnecting device of the oil pump; 11. a linear motor mover; 12. a linear motor stator; 13. a downhole packer; 14. packer rubber; 15. plugging; 16. an upper joint; 17. an upper baffle ring; 18. a pin; 19. an inner baffle ring; 20. a seal ring; 21. and a lower joint.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The device comprises an oil pipe 6, an oil-submersible linear motor (the linear motor is an oil-submersible linear motor in an example mode) and an underground packing device 13, wherein the oil-submersible linear motor is arranged in the oil pipe 6, the working stroke of a rotor 11 of the oil-submersible linear motor is 1.23-1.3m, the overtravel length is 0.07m, and the underground packing device 13 is connected with the bottom end of the oil pipe 6; when the submersible linear motor extrudes the underground packing device 13, the underground packing device 13 expands outwards, and a plug 15 is arranged below the underground packing device 13.
Further, as shown in fig. 1, the downhole packing device 13 includes an upper joint 16, a lower joint 21, a baffle ring and a packer rubber cylinder 14, wherein one end of the upper joint 16 is connected with the bottom end of the oil pipe 6, the other end of the upper joint 16 is fixedly connected with the lower joint 21, one side of the baffle ring is arranged inside the upper joint 16, the other side of the baffle ring is arranged outside the upper joint 16, the baffle ring is slidably connected with the upper joint 16, the packer rubber cylinder 14 is fixedly sleeved outside the upper joint 16, the packer rubber cylinder 14 is positioned between the baffle ring and the lower joint 21, and the packer rubber cylinder 14 is tightly arranged with the baffle ring; the upper joint 16 is provided with a sliding hole, the baffle ring is penetrated through the upper joint 16 by the sliding hole, the baffle ring comprises an upper baffle ring 17 arranged outside the upper joint 16 and an inner baffle ring 19 arranged inside the upper joint 16, the upper baffle ring 17 and the inner baffle ring 19 are fixedly connected by a pin 18 or a bolt, and a sealing ring 20 is arranged between the inner baffle ring 19 and the upper joint 16. The seal ring 20 prevents the tubing and casing from communicating, and seals to achieve snubbing operations.
The working principle of the pump type electric submersible plunger pump well killing-free operation device is as follows:
when the pump checking operation is needed, as shown in fig. 2, the underground submersible linear motor rotor 11 is controlled to descend through the power cable 3 by the ground intelligent control cabinet 2 (arranged beside the wellhead 4, the ground intelligent control cabinet 2 is electrically connected with the transformer 1, and voltage supply is regulated by the transformer 1), the submersible linear motor rotor 11 pushes the inner baffle ring 19 downwards under the action of axial extrusion force, and the upper baffle ring 17 and the inner baffle ring 19 are connected through the pin 18 (the exemplary optional pin 18) so as to drive the upper baffle ring 17 to downwards extrude the packer rubber cylinder 14, the packer rubber cylinder 14 is expanded, the outer diameter is enlarged, the annular space between the oil pipe and the sleeve is sealed, fluid is prevented from passing, and well fluid and pressure are isolated. The fishing head 7 of the pump is lifted and fished on the fishing tool, the plunger disconnecting device 10 of the oil pump is opened, the oil pump 9 is lifted to the ground for maintenance, the pump is detected by the pipe string, the well killing operation is realized at the same time, the operation efficiency is effectively improved, and the pollution to the stratum is reduced.
After the pump inspection is finished, the pump barrel sealing device 8 of the oil pump 9 is connected with the oil pump 9 through threads, the oil pump is slowly lowered to the position of the underground submersible linear motor stator 12 by using the sucker rod and the throwing device, then the submersible linear motor is started, the sucker rod and the throwing device are then lifted, and the underground submersible linear motor rotor 11 is controlled to ascend through the ground intelligent control cabinet 2. The working stroke of the submersible linear motor rotor 11 is 1.23m, the maximum stroke can reach 1.3m, and the overstroke length is 0.07m. The over-stroke of the submersible linear motor rotor 11 can be utilized to realize the butt joint of the plunger of the oil pump 9 and the submersible linear motor rotor 11 through the snap springs. After the submersible linear motor rotor 11 ascends, the packer rubber 14 is unsealed, and the oil well resumes normal production.
During hot washing operation, the downhole packing device 13 can be pushed by the submersible linear motor rotor 11 to seal the annular space between the oil pipe and the sleeve 5, so that hot washing liquid is reduced from flowing into the stratum, the hot washing efficiency is improved, and pollution of the hot washing liquid to the stratum is reduced.
The underground packing device is driven by the mover of the submersible linear motor to downwards drive, the annular space of the casing is packed, and hot washing liquid does not enter the stratum in the process of hot washing and paraffin removal, so that the hot washing efficiency is improved; in the pump operation process is examined to the fixed pipe string, seal and separate the oil reservoir, isolated stratum pressure forms and directly carries out the pump operation of lifting under the safe condition, improves the operating efficiency greatly. After the pump inspection operation is finished, the sucker rod is utilized to descend the oil pump, the submersible linear motor rotor drives the underground sealing device to unseal, the upper part of the motor rotor is clamped with the plunger of the oil pump again, and normal oil pumping operation can be performed. The problems that in the pump detection operation process of the fixed pipe column, well killing operation is needed to be carried out, and the operation efficiency is affected are effectively solved, and in the heat washing and paraffin removal process of the oil pipe, heat washing liquid easily enters into a stratum, so that the heat washing efficiency is low are solved. The underground packing device is simple in structure and convenient to use.
The pump type electric submersible plunger pump snubbing operation method based on the pump type electric submersible plunger pump snubbing operation device comprises the following steps:
the motor rotor downwards extrudes an inner baffle ring of the underground packing device, the inner baffle ring drives an upper baffle ring to downwards extrude a packer rubber cylinder, the packer rubber cylinder expands, an annular space between an oil pipe and a sleeve is sealed, and the operation is started;
and after the operation is finished, controlling the motor rotor to ascend, and realizing deblocking by the underground packing device.
Further, the method comprises the following steps:
when the pump checking operation is carried out, as shown in fig. 2, the underground submersible linear motor rotor 11 is controlled to descend through the power cable 3 by the ground intelligent control cabinet 2 (arranged beside the wellhead 4, the ground intelligent control cabinet 2 is electrically connected with the transformer 1, and power supply is regulated by the transformer 1), the submersible linear motor rotor 11 pushes the inner baffle ring 19 downwards under the action of axial extrusion force, and the upper baffle ring 17 and the inner baffle ring 19 are connected through the pin 18 (the exemplary optional pin 18), so that the upper baffle ring 17 is driven to downwards extrude the packer rubber cylinder 14, the packer rubber cylinder 14 is expanded, the outer diameter is enlarged, the annular space between the oil pipe and the sleeve 5 is sealed, fluid is prevented from passing, and well fluid and pressure are isolated. The fishing head 7 of the pump is lifted and fished on the fishing tool, the plunger disconnecting device 10 of the oil pump is opened, the oil pump 9 is lifted to the ground for maintenance, the pump is detected without the pipe column, the well killing operation is realized, the operation efficiency is effectively improved, and the pollution to the stratum is reduced;
after the pump inspection is finished, the pump barrel sealing device 8 of the oil pump 9 is connected with the oil pump 9 through threads, the oil pump is slowly lowered to the position of the underground submersible linear motor stator 12 by using the sucker rod and the throwing device, then the submersible linear motor is started, the sucker rod and the throwing device are then lifted, and the underground submersible linear motor rotor 11 is controlled to ascend through the ground intelligent control cabinet 2. The working stroke of the submersible linear motor rotor 11 is 1.23m, the maximum stroke can reach 1.3m, and the overstroke length is 0.07m. The over-stroke of the submersible linear motor rotor 11 can be utilized to realize the butt joint of the plunger of the oil pump 9 and the submersible linear motor rotor 11 through the snap springs. After the submersible linear motor rotor 11 ascends, the packer rubber 14 is unsealed, and the oil well resumes normal production.
In addition, during hot washing operation, the underground packing device 13 can be pushed by the submersible linear motor rotor 11, the annular space between the oil pipe and the sleeve 5 is sealed, hot washing liquid is reduced from flowing into the stratum, the hot washing efficiency is improved, and pollution of the hot washing liquid to the stratum is reduced.
According to the method, the downhole packing device is driven by the mover of the submersible linear motor to downwards drive, the annular space of the casing is packed, hot washing liquid does not enter the stratum in the process of hot washing and paraffin removal, and the hot washing efficiency is improved; in the pump operation process is examined to the fixed pipe string, seal and separate the oil reservoir, isolated stratum pressure forms and directly carries out the pump operation of lifting under the safe condition, improves the operating efficiency greatly. After the pump inspection operation is finished, the sucker rod is used for descending the oil well pump, the submersible linear motor rotor drives the underground sealing device to be unsealed, the upper part of the motor rotor is clamped with the plunger of the oil well pump again, normal oil pumping operation can be performed, the problems that the operation efficiency is affected because well killing operation is needed in the pump inspection operation process of a fixed pipe column and the thermal washing liquid easily enters a stratum in the thermal washing and paraffin removal process are solved, and the problem of low thermal washing efficiency is caused.
Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The well killing operation device of the casting and fishing pump type electric submersible plunger pump is characterized by comprising an oil pipe, a motor and an underground packing device, wherein the motor is arranged in the oil pipe, and the underground packing device is connected with the bottom end of the oil pipe; when the motor presses the underground packing device, the underground packing device expands outwards.
2. The device for the operation of the pump type electric submersible plunger pump without well killing according to claim 1, wherein the underground packing device comprises an upper joint, a baffle ring and a packer rubber, one end of the upper joint is connected with the bottom end of the oil pipe, one side of the baffle ring is arranged inside the upper joint, the other side of the baffle ring is arranged outside the upper joint, the baffle ring is in sliding connection with the upper joint, the packer rubber is fixedly sleeved outside the upper joint, and the packer rubber is tightly arranged with the baffle ring.
3. The device for pumping-in and pumping-out type electric submersible plunger pump snubbing well operation according to claim 2, wherein a sliding hole is formed in the upper joint, and the baffle ring is arranged on the upper joint in a penetrating manner through the sliding hole.
4. The pump-casting type electric submersible plunger pump snubbing operation device as recited in claim 3, characterized in that the baffle ring comprises an upper baffle ring arranged outside the upper joint and an inner baffle ring arranged inside the upper joint, and the upper baffle ring and the inner baffle ring are fixedly connected.
5. The pump-casting type electric submersible plunger pump snubbing device as recited in claim 4, characterized in that a sealing ring is provided between the inner retainer ring and the upper joint.
6. The pump-in pump type electric submersible plunger pump snubbing operation device of claim 4, characterized in that the upper retainer ring and the inner retainer ring are connected by pins or bolts.
7. The pump type electric submersible plunger pump snubbing well operation device as defined in any one of claims 1-6, characterized in that the downhole packing device comprises a lower joint, the other end of the upper joint is fixedly connected with the lower joint, and the packer rubber is located between the baffle ring and the lower joint.
8. The device for operating the pump type electric submersible plunger pump without killing a well according to claim 7, wherein the motor is a linear motor, the working stroke of a rotor of the linear motor is 1.23-1.3m, and the overstroke length is 0.07m.
9. A method for running a pump-type electric submersible plunger pump without well killing, characterized in that the device as set forth in any one of claims 1-8 is adopted, comprising:
the motor rotor of the motor downwards extrudes the underground packing device, and the underground packing device expands outwards to seal the annular space between the oil pipe and the sleeve, so that the operation is started;
and after the operation is finished, controlling the motor rotor to ascend, and realizing deblocking by the underground packing device.
10. The method of claim 10, wherein the motor rotor presses down the inner baffle ring of the downhole packing device, the inner baffle ring drives the upper baffle ring to press down the packer rubber, the packer rubber expands, and the annular space between the oil pipe and the casing is sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111555564.8A CN116265699A (en) | 2021-12-17 | 2021-12-17 | Device and method for pumping and fishing pump type electric submersible plunger pump snubbing operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111555564.8A CN116265699A (en) | 2021-12-17 | 2021-12-17 | Device and method for pumping and fishing pump type electric submersible plunger pump snubbing operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116265699A true CN116265699A (en) | 2023-06-20 |
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ID=86743909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111555564.8A Pending CN116265699A (en) | 2021-12-17 | 2021-12-17 | Device and method for pumping and fishing pump type electric submersible plunger pump snubbing operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116265699A (en) |
-
2021
- 2021-12-17 CN CN202111555564.8A patent/CN116265699A/en active Pending
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